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Aqua Intellect Ecosystem is a smart aquarium control and monitoring system designed to automatically maintain the stability of water temperature and pH. This system replaces the use of refrigerant gases with more environmentally friendly Peltier modules, making it a safer and more efficient alternative for aquatic life care. The main issues in conventional aquarium systems are their reliance on refrigerant gases, which can harm the environment, and the lack of an intelligent monitoring system capable of providing early warnings when drastic changes in water temperature and pH occur. Therefore, this study aims to develop an automated temperature and pH monitoring and control system for aquariums using IoT technology, evaluate the effectiveness of the Peltier module in stabilizing water temperature, and implement a real-time notification system via the Telegram application for convenient remote monitoring. This project utilizes the ESP32 as the main processor, along with the DS18B20 temperature sensor and a pH sensor to measure water parameters. The collected data is transmitted to the Telegram application via Wi-Fi to alert users of any significant changes in temperature or pH. Test results indicate that the Peltier TEC-12708 module, when used with a radiator, is more efficient at lowering water temperature compared to the TEC-12706. Meanwhile, IoT integration enhances user accessibility, making aquarium monitoring more convenient and responsive. A conducted survey confirmed that the system is user-friendly, practical, and has market potential. For future improvements, the system can be enhanced by increasing the number of Peltier modules, incorporating a TDS sensor to measure dissolved substances in the water, using more sensitive sensors, and implementing additional automatic control functions